It's basically the same as building a car from a CAD file. This technology has existed since the early '80s and has mainly been used for manufacturing and research purposes. It was meant for industrial use and were huge, cumbersome and highly expensive devices that could only fit in large open spaces.

Lately there has been a surge in popularity among hobbyists for home applications, like making plastic or metal parts for machines, and companies have caught on by making smaller -- and a little less expensive -- 3D printers.

What sets Essential Dynamic's 3D printer itself apart from all the rest is its syringe design that allows it to print food, as well as other materials like cement, epoxy, silicone, etc. It can print a mini-chocolate cupcake in about one minute.

Another difference is that the Imagine 3D printer comes pre-assembled.

David Minsky is a U.S. Navy veteran and Tulane graduate who has experience reporting on stories from California, South Florida, and the Deep South. He has also won some journalism awards. Email or tweet David with story tips and ideas.